Thread-reinforced-paper gummed tape



c. H. CROWE LL. THREAD RElNFORCED PAPER GUMMED TAPE. APPLICATION FILEDDEC. 1. 1916.

1 85 1 3'74 Patented Aug. 31; 1920.

3] vwewtoz alto-Mau To all whom it may concern:

Be it known that 1, CHARLES H. CROWELL,

a citizenof the United States, and resident of vthe borough of Brooklyn,county of 'Kings, city and State of New York have made a certain new anduseful nvention Relating to Thread-Reinforced-Paper Gummed Tape, ofwhich the following is a specfication, taken in connection with theaccompanying drawing, which forms part of cartons, paper boxes or otherpackages or making the same or other articles, and in which a series ofreinforcin or strengthening threads are incorporate andpreferably moreor less embedded during manufacture in the paper forming the body ofthis gummed tape. These reinforcing threads are 7 preferably locatedadjacent one face or side of the tape and may be more or less-exposedinthe paper sheet originally manufactured. This reinforced face of thepaper may be coated with a filling or size coating which is preferablymore or less scraped away from the exposed surface of' the reinforcingthreads and then the gummed or other ad hesive coating of any suitablecharacter may be applied to this reinforced side of the paper so as toform gummed paper or tape of specially strong desirable character. Whenout.

' ting this gummed sheet up into strips for use it is desirable to severthe same so that the reinforcing threads are located more or lesstransversely to the length of the strip or gummed tape in case alongitudinal seam is to be adhesively closed or secured, since in thisway the reinforcing threads run transversely across the same and stillfurther strengthen the gummed tape.

In the accompanylng somewhatdiagrammatic drawings, Figure 1 is a diagramshowing the process of manufacturing thread reinforced paper gummedtape.

Fig. -2 diagrammatically illustrates v a the large sheets or' rollsmethod of severin of this material into individual gummed strips foruse; and

Fig. 3 is an enlarged diagrammatic section through a portion of one ofthese strips.

The reinforcing threads used in connection with this "reinforced papermaterial may be of anv suitable fibrous material,- such as'cotton, whichis fairly cheap and strong so as the dandy roll, prefera ly A has beenapplied to the sides of these threads nEmroncnn-r'krnn Gunman mm yPatented-Aug. 31, 11920. -App1icatlon filed December. 1, 191a, serialNo. 134,349.

to be suitable for thesm'all diameter threads most desirable forincorporation" in the ordinary thin reinforced paper gummed tape..

These threads produced many usual or suitable way may have a diameter ofabout three to six or ei ht thousandths of an inch, more 1 greaterdegree of adhesion is secured and the threads may under some conditionsbe practlcally completely embedded in the paper material. For thispurpose it is desirable to incorporate the reinforcing threads in thepaper before it has been completely laid or formed, that is, when partofthe paper;

sheet at least isstill in the form of wet and fluent pulp the fibers ofwhich are subsequently more "or less felted or interlocked with thereinforcin threads by these paper making methods. or continuously makingsuch a thread reinforced paper sheet whichis a desirable though notnecessary method of producing the same,- a Fourdrinier type of papermachinemay be used, which is shown somewhat diagrammaticallyin Fig.1,

in which the wire 7 travels along the usual carriers beneath the deckelstraps 8 and deckel roll 9 and over the suction boxes, such as 10, 11,supported as by the frame member 12. The dandy roll 18 may be locatedbetween the two suction boxes and the reinforcing threads 25 may beincorporated inv the forming paper b leading them over after. suitablesize which are to contact with theinner portion of the. paper sheet asby running these threads in contact with the size roll 24:. ,It isdesirable in order to..prom0te the-more uniform spacing of thesereinforcing threads to run the threads through a suitablethread guide 23spacing them apart at the desired intervals, and where the wire is givena transverse movement at this-part of the ma-' chine to promote thelaying or felting of the paper the threads should be. moved in unisontherewith and with the dandy roll which may: be effected by securingthis thread guide de brackets 21 co6perat-' 19'of the dandy roll andhaving guide arms '22 supported as by slid- 23 in the suitable ingwiththe she in ly engaging .a. guide rod arranged tragnsversely of'themachine. In this way he reinforcing threads, which may rse be drawn froma warp beam or other ombined supply or from separate spools in a creelframe, for instance, are, at the point where the and embed ded in theforming sheet of Kraft or other referably strongpaper, moved transversey in unison therewith, so that the wet or soft paper (pulp ma be more orless laid on compacte aroun Thus whenthe wire 7 and sheet of paper 2upon it passover the roll 13 and between the upper and lower couch rolls14, 15, the paper has these reinforcing threads thoroughly-embedded init so that the combined sheet may be pressed, dried and calendered asusual in paper makingto produce-a. firm and strong combined sheet. fdesired,*however, the reinforcing threads ma be incorporated in thesheet ofpaper w ileit is in wet soft condition, but after it has beenractically completel formedflaid or feltc tofgether, and for t ispurpose a series of rein orcing threads 25 may be forced into contactwith the paper 2 as it passes under the upper couch roll 15. Thesethreads may pass over a size roll 26 to appl suitable adhesive or sizeto the sides of t e threads which are to engage the paper and thespacing of the threads may be controlled by passing them through asuitable thread guide 27 supported as by the brackets 29co6perating withthe shaft of the size roll or with its supporting devices. The ressureexerted by the upper 5 couch roll or y a specially formed smooth orpreferably somewhat corrugated metal roll at this point forces thethreads into the soft and yielding paper sheet which has been formed, sothat the are somewhat embedded therein and simu taneously flattened andrendered adherent thereto. This. union between the threads and the paperstrip which is of course promoted by the size used 'on the threads, isimproved by the other, usual paper making processes to which the comvbined sheet or strip 2 is subjected as it passes through-the rest ofthepaper making machine, such as the felt 17 on the felt roll 16 andother cooperating parts and devices which simultaneously compress andfinish the continuous reinforced sheet of paper.

The combined thread reinforced sheet or strip of paper may be filled onthe thread side in any suitable way as by passing the sheet 2 in contactwith a suitable filling roll 29 to which an adhesive filling or loadingcomposition is supplied inregulated amounts so that the filling materialis applied tothe thread side of the paper and impervious the rest of thefabric.

of this filling operation the paper may be dried are brought intocontact with or over them.

which is preferably being preferably removed or scraped away above thethreads themselves so as to leave them more or less exposed on this sideof the paper while filling and rendering liafore ter in any suitable wayand then calendered to the desired extent as by passing the same throughsuitable calender rolls, such as 30, which are indicateddiagrammatically and the thread reinforced paper strip may then begummed in any suitable way as by passing it in contact with a gummingroll 31 which may be supplied with any suitable gum or other suitableadhesive composition uniformly and smoothly applied to the thread sideof the strip and dried by 'usual'means. Thereafter the material may becut or slit to the desired width and wound into rolls, such, forinstance, as the supply roll 33 shown in Fig. 2, in which thereinforcing threads run substantially longitudinally; or if desired thesheet may be cut into. separate pieces of any other shape and desiredarrangement of threads. The sheet 2 of gunimed thread reinforced paperis shown in Fig. 2 as partly unwound from this supply roll 31 so thatthis sheet, which may have a width corresponding to the length of theseparate strips desired, may be cut into individual reinforced gummedstrips by any suitable cutting mechanism, such for instance as thecutter '34 such as the moistener roll 35 so as-to render the gummedsurface of this strip adhesive and allow it to be applied to a carton,box or other package or article. It will thus be evident that thereinforcing threads, which may run across this tape in a directionperpendicular to its length, may thus be arranged exactly or practicallyperpendicular to the seam to be closed or strengthened so that thesethreads thus exert a maximum reinforcing action, while at the same timethey have been more readily and thoroughly incorporated in the papersheet by being arranged longitudinally thereof. It is of courseunderstood, however, that the reinforcing threads may be arranged in aperpendicular or other substantially trans- I verse manner across therelatively narrow when it is partially with the paper sheet andembedding and the result shown in a somewhat ezragg'erated diagrammaticway in Fig. 3. The body 1 0 the gummed tape2 may be formed of Kraft orother paper preferably having a long and strongfiber'and the embeddedreijpel'rations to which the combined strip has been subjected. Thefilling or size coating which may be used. in some cases, 'although' itis not of course necessary for all purpresent at the points 6 beposes,may be low the threads, if desired, and also may be used in somewhatgreater thickness at the points 4 between the threads, while by themethods-of application described it would be rubbed into the exposedupper surface of the thread and more or less incorporated therewith,although preferably allowing at least some of the thread fibers toprotrude through this coating. In this waya still greater adhesion ofthe gum or other adhesive coating 5 is secured which is thus stronglyand permanently adherent to the tape so that practically the entirestrength of all the tape elements is utilized when the gummed strip ortape or other shaped piece of such gummed thread reinforced paper isapplied in the forming or closing of apackage or other device.

, This invention. has been described in connection with a number ofillustrative. embodiments, forms, proportions, materials)", elements,steps, devices, machinery, and conditions to the details of whichdisclosure the inventionjs not of course to be limited,

since what is claimed as new and what is desired to be secured byLetters Patent is set forth in the appended claims:

1. The process of forming-thread reinforcedadhesive paper whichcomprises forming a continuous sheet of paper, incorporating with saidsheet a substantially parallel series of reinforcing threads sized onthe sides which are brought in contact with the paper sheet andembedding and securing said threads in said sheet substantially parallelto its edges, compressing, finishing and drying said reinforced papersheet, to leave portions of said threads exposed on the reinforced sideofthe sheet, and applying an adhesive gum coating to.

the thread reinforced side of the sheet.

2. The process of forming thread reinforced adhesive paper whichcomprises forming from pulp and laying a continuous sheet of paper,incorporating in said sheet laid a substantially parallel series ofreinforcing threads sized on the sides which are brought in contactsecuring said threads in said sheet by the subsequent laying and formingther'eof,compressing, finishing and dryin said reinforced paper sheet,filling the t read side of substantially fill the paper between theexsaid sheet with a size filling composition to posed reinforced threadsand removing said .filling material sufficiently from the protruding.threads to leave portions of them expose on the reinforced side of thesheet, andapplying a gumcoating to the thread reinforced side of thesheet to substantially smoothly cover the same and be strongly adherentto the reinforcing threads and paper body of the sheet.

3; The process of forming thread reinforced, adhesive paper. whichcomprises forming from pulp and laying a continuous sheet. of paper,incorporating in said sheet when it is partially laid/a substantiallyparallel series of reinforcing threads and embedding and securing saidthreads in said sheet by the subsequent laying and forming thereof,compressing, finishing and drying said reinforced paper eet so thatportions of the threads are exposed therein, and ap-, plyin a gumcoating to the thread reinforce side of the sheet to be adherent to thereinforcing threads and paper body of the sheet.-

; 4. The process of forming thread reinforced adhesive paper whichcomprises forming a continuous sheet of paper, incorporating with saidsheet a substantially parallel series of-reinforcing cotton threadssized on the sides which are brought in con-- ,tact with the paper sheetand spaced apart at distances about equal to the normal diameter ing orinterlocking with the paper fiber so as 'to be substantially parallel toits edges,

compressing, finishing and drying said reinforced paper sheet, andapplyingan'adhesive gium coating tothe sheet.

he process of forming thread reinn forced adhesive paper which comprisesforming a continous sheet of paper, incorporating with said "sheet asubstantially parallel series of reinforcing cotton threads spaced apartat distances about equal to the normal diameter of said threads andembedding and securin said .threads in said sheet of paper by elting orinterlocking with the paperfiber so as to be substantially parallel toits edges, compressing, finishing and applying an adhesive gum coatingto the sheet. 4

6. The process of forming thread reinforced adhesive paper whichcomprises forming a continuous sheet of paper, incorporating with saidsheet a substantially parallel series of reinforcing threads sized onthe sides which are brought in contact with the paper sheet andembedding and securing said threads: in said .sh'eetsubstantiallyparallel -,to its edges, compressing, finishing and drying saidreinforced. paper sheet, filling the threadside of said sheet tiallyfill the paper between the exposed reinforcing threads and removing saidfilling material sufiiciently from the protrudin threadsto leaveportions of them expose on the reinforced side of the shee and a plyinan adhesive. gum coating to t e threa reinforced side of the sheet.

v 7. The' process of forming thread reinforced adhesive paper whlchcomprises forming a continuous sheet of paper, incorporating with saidsheet a substantialy parallel series of reinforcing cotton threa s andembedding and securing said threads in said sheet of pa er by felting orinterlocking with the paper her so as to be substantially parallel to1ts edges so that portions of the threads extend through one side of thepaper body, and applying an adhesive coatmg toxthe sheet. a

8. The process of forming thread reinforced adhesive paper whichcomprises forming a continuous sheet ofpaper, incorporating with saidsheet a series of reinforcing threads and ,embedding and securing paperby feltsaid threads in said sheet 0 ing or interlocking with the paperfiber and applying an adhes've coating to the sheet.

9. The reinforci paper gummed tape 0% paper in which a subing threadsare spaced apart at distances about equal to their normal diameters andincorporated so as to extend perpendicularly across the tape and besubstantially completely embedded and adherently secured in said body, asize filling coating extending more or less over the protruding portionsof the threads and .the intervening portions of the paper, portions ofthe threads extendin the rein orced side of thepaper bod and an adhesivegum coating on the threa sides of said reinforced tapeto enable the sameto be moistened and applied to paper or other articles.

10. The reinforcing paper gummed tape comprising a body of paper inwhich a substantially parallel series of cotton reinforcstantially ingthreads are spaced apart at distances about equal to their normaldiameters and incorporated so as to extend across the tape and besubstantially completel and adherently secured in sai body, portions ofthe threads extending through the reinforced side of the paper body andan adhesive um coating on the thread side-of said reinorced tape toenable the same to be moistened and applied to paper or other articles.h

11. The reinforcing paper gummed tape comprising a body of paper inwhich a subarallel series of cotton reinforcing threa s are spaced apartat distances about equal to their normal diameters and through thisfilling coating on embedded incorporated so as to be substantially .com-

plete y embedded and adherently secured in said body, portionsof' thethreads extendingothroug the reinforced side of the dy and an adhesivecoating on'the thread side of said reinforced 'tape .to enable the sameto be moistened and applied to paperor other articles. 12. Thereinforcin paper gummed tape comprising a, body 0 paper in which asubstantially arallel series of reinforcing threads are incorporated soas to be substan tially completely embedded and adherently I secured insaid body, portions of'thethreads extending through the reinforced sideof the 80. paper body and an adhesive coating on the thread side of saidrein-forced tape to enable the same to be moistened and applied to paperor other articles. 13. The reinforcing paper gummed tape comprising abody 0 paper in which a su stantially parallel series of separatedreinforcing threads are incorporated so as to extend perpendicularlyacross the tape and be substantially completely embedded in said .00body, a size filling coating extending more or less over the protrudingportions of .the threads and the intervening portions of the paper,portions of the threads extendi through this filling coating and a smootadhesive gum coatlng on the thread side of said reinforced tape toenable the same to be moistened and applied to paper or other articles.

14. The thread reinforced aper tape comprising a body of paper in w icha substantially parallel seriesof se arated reinforcing threads areincorporate so as to be substantially completely embedded in said body,a size filling coating extending more or less over the protrudingportions of the threads and the intervening portions of the paper,portions of the threads extending through this filling coating and anadhesive coating on the thread side of said reinforced tape to enablethe 'same tobe softened and applied to paper or other articles.

15. The thread reinforced paper tape comprising a body of paper in whicha substantially arallel series of separated reinforcing. 116 threa s areincorporated so as to be substant ally completely embedded in said body,a size filllng coating extending more or less over the protrudingportions of the threads and the intervening portions of the paper, 120and an adhesive coating onthe thread side of said reinforced tape toenable the same to be softened and applied to paper or other articles.

16. The thread reinforced Ipaper gummed tape comprising a body of raftpaper in which a substantially parallel series of separated reinforcingthreads are incorporated so as to extend substantially transverselyacross the tape, a size filling coating extend- 85 rated reinforcingthreads are incorporate so ing more or less over the protruding portionsof the threads and the intervening stantially transversely across thetape and an adhesive gum attaching coating on the thread side of saidreinforced tape anden- I gaging fibrous portions of said threads toenable the same to be applied to paper or other articles.

18. The thread reinforced paper tape comprising a body of paper withwhich a substantially parallel series of reinforcing threads areincorporated so as to extend substantially transversely across the tapeand an adhesive attaching coating on the thread side of said reinforcedtape to enable .the same to be applied to paper or other articles.

19. The thread reinforced adhesive paper comprising a body of paper withwhich a substantially parallel series of reinforcing threads areincorporated and'an adhesive attaching coating on the thread side ofsaid reinforced paper engaging portions of said threads, to enable thesame to be applied to paper or other articles.

20. The thread reinforced adhesive paper gummed tape comprising a bodyof paper in which a substantially parallel series of se aas to extendsubstantially transversely across the tape and substantially completelyembed ded in and secured to said body by size between the inmostportions of the threads and the paper, and an adhesive gum' coating uponthe thread side of said reinforced tape I to enable the same to beapplied to paper or' other articles.

21. The thread reinforced adhesive paper gummed tape comprising a bodyof paper 1n which a substantially parallel series of reinforcingthreadsare incorporated so as to extend substantially transversely across thetape and secured to'said body by size between the inmost portion of thethreads and the paper, and an adhesive gum coating upon the thread sideof said reinforced tape to enable the same to be applied to paper orother articles.

22. Thethread reinforced adhesive paper gummed tape comprising a body ofpaper in which a substantially parallel series of reinforcing threadsare incorporated and secured to said body by size between the inmostportion of thethreads and the paper,

and. an adhesive coating -upon thexthread side of said reinforced tapeto enable the same to be applied to paper or other articles. 23. Thethread reinforced paper gummed tape comprising a body-of paper with whih a substantially parallel series of reinforcing threads areincorporated and partially embedded. T

24.. The thread reinforced paper comprising a body of paper in which asubstantially parallel closely spaced series of separatedreinforcing'threads are incorporated so as to be felted together andinterlocked with the paper fiber and substantially completely embeddedin said body, a size filling coating extending more or less over theprotruding portions of the threads and the intervening portions of thepaper, portions of the threads extending through this filling coatingand an adhesive gum coating on the thread side of said reinforced paperto enable the same to be softened and applied to articles.

25. The thread reinforced paper comprising a body of paper in which asubstantially parallel closely spaced series of separated reinforcingthreads are incorporated so as to be felted together and interlockedwith the paper fiber and substantially completely embedded in-said bodyand' an adhesive gum coating on the thread side of said reinforced paperto enable the same to be softened and applied to articles.

26. The threadreinforced paper comprising a body of paper in which asubstantially parallel closely spaced series of separated re inforcingthreads are-. incorporated so as to be interlocked with the paper fiberand substantially completely embedded in said body,

and an adhesive gum coating on said reinforced paper to enable the sameto be sofv tened and applied to articles. 7

.27. The thread reinforced paper comprising a body of paper in which asubstantially parallel series of separated reinforcing threads areincorporated so as to be interlockedwith the paper fiber andsubstantially completely embedded in said body, and an adhesive coatingon said reinforced paper to enable the same to be applied to articles.

28. The thread reinforced paper comprising abody of paper in which aseries of reinforcing threads are incorporated so as to be interlockedwith the paper fiber and embedded in said body so that portions of thethreads extend through one side of the paper body, andan adhesivecoating on said a reinforced paper to enable the same to be applied toarticles.

. QHARLES H. CROWELL. Witnesses: I 1

p J. HEUTER,

" LEON BERTRAM" DOWNES.

